The Death Eaters can't all be pure-blood, there aren't enough pure-blood wizards left, said Hermione stubbornly. I expect most of them are half-bloods pretending to be pure. It's only Muggle-borns they hate, they'd be quite happy to let you and Ron join up There is no way they'd let me be a Death Eater! said Ron indignantly....My whole family are blood traitors! That's as bad as Muggle-borns to Death Eaters! And they'd love to have me, said Harry sarcastically. We'd be best pals if they didn't keep trying to do me in.